The HPF18G-DC15G from Quantic PMI (Planar Monolithics) is a RF High Pass Filter with Frequency 18 to 26.5 GHz, Insertion Loss 1.5 dB, Rejection 60 dB @ DC to 15 GHz, VSWR 2.00:1, Operating_Temperature -40 to 85 Degree C. Tags: Module with Connectors. More details for HPF18G-DC15G can be seen below.